摘要
以重穗型品种040121-135为供试材料,研究氮肥追施时期与群体密度对晋中晚播小麦籽粒产量与品质的影响。结果表明,晋中晚播小麦合理的肥密运筹可以获得8.6t.hm-2的高产;前期重施拔节肥促源,后期重施孕穗肥促库,且有利于提高籽粒品质。合理的群体密度应在450万.hm-2以上。
With heavy ear cultivar （040121 135） as material, the experiment was conducted to study the effects of top- dressing nitrogen stage and population density on grain yield and quality of later-sowing wheat in Jinzhong. The results showed that later-sowing wheat could get the high-yielding of 8.6 t· hm-2 through adopting reasonable topdressing nitrogen stage and population density in Jin-zhong, and topdressing more nitrogen could increase source in jointing stage and improve sink with grain quality in booting stage. Reasonable population density was 450 ×10^4 per hectares.
出处
《山西农业大学学报（自然科学版）》
CAS
2012年第2期112-117,共6页
Journal of Shanxi Agricultural University(Natural Science Edition)
基金
现代农业产业技术体系建设专项经费(CARS-3-1)
山西省科技攻关计划项目(20110311001-4)
关键词
群体密度
追肥时期
晋中晚播小麦
籽粒产量
籽粒品质
Population density
Topdressing nitrogen stage
Later-sowing wheat in J inzhong
Grain yield
Grain quality
